Container transportation has become the main transportation form for international freight. In this paper, the energy saving and reliability tactics are considered and we design a new E-ZBR routing algorithm based on the original ZBR routing protocol. Firstly we propose the score criterion for estimating a path, and then based on nodes' connectivity, we select two existed better routing paths through improved FCM clustering algorithm. Through clustering, we get rid of those nodes with possible failure and construct a fault tolerance routing path with more reliability and robustness. We demonstrate that E-ZBR routing protocol has higher the energy efficiency and fault tolerance.